I just realized I'm clipping arcane missiles like a MFer. Literally, just dawned on me. I always kind of suspected so, but told myself I was crazy. Do those who play arcane use the macro that doesn't allow you to cast AB or AM when channeling AM or do you simply try and time it right and live with the results? Are there negatives to using the channeling macro like downtime after casting or is that not really an issue?